Process for forming a planar diode using one mask

A planar diode and method of making the same employing only one mask. The diode is formed by coating a substrate with an oxide, removing a central portion of the oxide to define a window through which dopants are diffused. The substrate is given a Ni/Au plating to provide ohmic contact surfaces, and...

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Bibliographische Detailangaben
Hauptverfasser: LU KEVIN, CHIANG WARREN, WANG BENSON, CHEN MAX
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A planar diode and method of making the same employing only one mask. The diode is formed by coating a substrate with an oxide, removing a central portion of the oxide to define a window through which dopants are diffused. The substrate is given a Ni/Au plating to provide ohmic contact surfaces, and the oxide on the periphery of the window is coated with a polyimide passivating agent overlying the P/N junction.